Patents by Inventor Judson W. Martt

Judson W. Martt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4179913
    Abstract: Metal strip tensioning apparatus for use in a continuous cold reduction method and mill for metal strip in which the trailing end of a metal strip passing through the mill is welded to the leading end of a metal strip coming off a new coil without stopping the mill, the trailing end portion of the metal strip passing through the mill being paid out from a metal strip storage system during the welding operation with a resulting loss of close control of the lateral metal strip position at the entry side of the first mill stand, the present invention providing a method and means associated with a metal strip back tensioning unit ahead of the first mill stand for correcting the lateral position of the metal strip issuing from the metal strip storage system while applying the tension of the metal strip in the metal strip storage system to the metal strip entry side of the back tensioning unit.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: December 25, 1979
    Assignee: National Steel Corporation
    Inventor: Judson W. Martt
  • Patent number: 4086689
    Abstract: A continuous cold reduction mill for metal strip in which the trailing end of a metal strip passing through the mill is welded to the leading end of a metal strip coming off a new coil without stopping the mill, the trailing end portion of the metal strip passing through the mill being paid out from a metal strip storage system during the welding operation with a resulting loss of close control of the lateral metal strip position at the entry side of the first mill stand, the present invention providing means associated with a metal strip back tensioning unit ahead of the first mill stand for correcting the lateral position of the metal strip issuing from the metal strip storage system while applying the tension of the metal strip in the metal strip storage system to the metal strip entry side of the back tensioning unit.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: May 2, 1978
    Assignee: National Steel Corporation
    Inventor: Judson W. Martt
  • Patent number: 4010081
    Abstract: Substantially horizontal rotary drum system for quenching and cooling coke, the drum having an internal helical conveying vane for moving the coke through the drum upon rotation of the drum, the diameter and the length of the drum and the pitch of the helical vane being such as to convey predetermined amounts of coke through the drum in the time periods required to quench and cool the coke with the drum rotating at speeds which will not cause undue attrition of the coke. Water sprays are arranged at the coke entry end of the drum, screens to drain excess water from the drum are present near the coke delivery end of the drum and a steam exhaust hood closes the coke delivery end of the drum. A conveyor conveys coke away from the coke delivery end of the drum, the hood including enclosure means for the conveyor.
    Type: Grant
    Filed: March 14, 1975
    Date of Patent: March 1, 1977
    Assignee: National Steel Corporation
    Inventor: Judson W. Martt